Trolley-wheel-turning machine.



P. HUDSON.

I TBOLLEZ WHEEL TURKING MACHINE.

APPLICATION FILED OUT. 20, 1908.

mu. m 1E 8 mm n Wm M & a. D...

INVENTOR, $5M M 1 ATTORNEVJ WITNESSES:

P. HUDSON.

TROLLEY WHEEL TURNING MACHINE.

APPLICATIDN FILED 001220, 1908. 960,932, Patented June '7, 1910.

6 SHEETS-BEBE! 2.

LVVEN T 0R,

W'lT/VESSES:

P. HUDSON. TEOLLEY WEEEL TURNING MAGHINE.

APPLICATION FILED OCT. 20, 1908 Patented June 7, 1910.

WITNESSES- P. HUDSON.

TROLLEY WHEEL TURNING MAG APILIGATIOL' YII'EL- (JCTv Patented J ans '2, 1910.,

'3 SHEEYS- HIIET 4.

IVVENTOR.

IVITNESSES:

ATTORNEYS.

F. HUDSON. ITBOLLEY WHEEL TURNING MACHINE.

' 5 APPLICATION FILED 0017.20, 1908. 960,932.

Patented June 7,1910. 6 SHEETS-SHEET 5.

INVENTOR,

A TTORNEYJ.

F. HUDSON. TROLL-BY WHEEL TURNING MACHINE. APfL-IOATIOH IILED 001. 20, 1908. 7 960,932, Patented June 7,1910.

' 6 BKBETS-BHBET 6.

INVEN TOR,

A TTORNEYS.

' tnvrran s'ra ras migrant ()FFICE.

FRANCIS HUDSON. OI HOLYOKE. HAS$ACHUSBTT8 T? QLLEY-WHEEIPT URNING MACHINE.

To all whom it may concern:

Be it known that l. FHA'Nt'IS UFDSUN. a

:eilizen of the United States of America, re-

- herein described machine being so designed that it may turn and finish at least four at once.

,Broadly stated, the invention comprises a rotatable turret member that is suitably sup ported so as to revolve in a horizontal laneon a circular base, the turret member eing 'provided with spindles or wheel-supporting arbors which are simultaneously rotated during the turnin and finishing operation.

Located above t e rotatable turret member are a series of cutters or chasers that are caused, through suitable mechanism, to simultaneously advance durin the turning and finishing operation 0 the several wheels, after which operation the cutters will be simultaneously withdrawn from the finished wheel, at the same time releasing the lockiiig mechanism for the rotatable turret, and the turret is advanced or rotated for- ,Kvardly throw-'11 an arc of 180 thus bringing I D into position a new set of wheels to be turned and finished, the new set of wheels having in the mean time been mounted on the spindles that are idle. It should be understood that the spindles which carry the wheels that are not being finished do not rotate.

Some of the ob'ects of this invention are,(1) to provide means for intermittently feeding the cutters toward and awa from the wheels that are being turned; (2

to provide means for automatically throwindle or arhors which support the ing the s tiring the turning operation into wheels and out of action duringthc rotation of the turret; (3) to provide means for raising and lowering the platform which carries the that wheels of greater Specification of Letters Patent.

Patented June 1', 1910.

width of tread may be turned; (4) to pro vide a tiexihie shaft construction whereby all of the ('utte or chasers may be simul taneously open. J (5) to provide means for varying the position, or adjusting the cutters. so :hat wheels of greater or less diameter nrt'v re turned or finished.

Other ohjects and the nature of the invention wiii he fully described in the. body of the specification and particularly pointed out in the claims.

In the drawings orming part of this apgilication,--Figure I is a plan View of the (....-'("}Hl)l".l'l machine clearly showing he drivin; mechanism for operating the tool-carrying turret. and the means for locking the turret at the compl tion of every half revolution. and the flexibl-e shaft with the universal joints for operating the cutters or chaser-s. Fig. 2 is a side eleva ion of the machine looking at Pi 1 from the righthand side thereof, clear y showing the track arrangement for automatically throwing the wheel-carrying shafts or ar'oors out of operation, and the sprocketrchsin construction for transmitting motion from the main drive-shaft to the jack-shaft which operates the turret-lockinq mechanism, and also the mechanism whic imparts anintermittent feed to the cutters, if desired. Fig. 3 is a vertical sectional view on the line 33 of Pi". 1 illustrating the location of the. main tll'l\'-.-'-l!flfi and the means for rotating the wheel-carrying spindles and the clutch means for throwing the spindles into and out of operation and the means for rotating the turret; als clearly showing at the righthand end of the figure a set of nuwhanisins for imparting motion from the main shaft to the cutter-operating devices and ti e. gearing for raising and lowering' the platform which carries the cutters. Fig. 4 15 a vertical sectional dew on the line 4-4, Fig. l clearl t showing the locking mechanism for holding the spindle-carrying turrets in stationary position during the turning operation. Fig. 5 is a detailed sectional view on line 55 of Fig. 1 illustrating the operative means for moving the cutters toward and away from the wheel that is being turned. Fig. 6 is a vertical sectional view on the line 6-6 of Fig. 1 illustrating the clutch mechanism for stopping and starting 'the devices for operatin the turret and the soctional viow on tho lino showing tho cant (lovi cs for oporating tho turrot-locking and unlocking mochanism and clutch mechanism for count-cling and. tlisconnorting tho powor from the jackshaft. Fig. 8 is a vortical soctional viow on 2 7? of Fig. 6 l is normally pro 9 is an olovational viow showing tho clutch mechanism for oonmecting and tlis- 5 connecting the main shaft from tho. ttitl'orcnt trains of luochanism which oporato tho marhino, andLFi it) is a horizontal sot-tional viow on tho lino 10-10. of Fig. in tho tliroction of tho arrow. cloarly illustrating the niastor goar that continuously t'otatos tho whool -snpporting urhors or it. looltiing a shafts. tlHtl also tho clutch mochanism fur t'onnt't'tlltg and tltsconnocttug tho tlrlmt's from tho mastor-whool.

thooiroular lmso portion ot' tho niachino in v which is tiiamotrically locatod tho. main th'iro-shat't I: through which powcr is translllltt('(l fr m tho bolt ("and stop cono-pttlloy 1] i that is soonrotl thoroto. tho hoartngs for tho 1 tlrtt'o-shat'l I; hoing indicated at 1' anti 'l'ho -rotatahlo ttn'rot. is intlicatotl at 1/, tho

lostot'" portion of which is holtotl to a woh or spitlor construction h.

'lho haso portion a tllltl tho wol) portion It aro proi'ittotl with hall-rotaining racos i for supporting tho anti-friction halls thoroin. whorulzy tho. turrot 1 can ho movotl on tho haso n with very littlo frictional rosistanco.

lioltotl to tho. wol) portion It is a hovoloil goar Z", amt moshing with the lattor is anothor goat m (shown in Figs. 321ml 4) which sorros to rotate tho turret I/, tho powor hoing olytainotl for this purpose through tho jack-shaft n by moans of the sprm'ltot-chain u atnl sprocltot-whools p and q as will ho t vttlctl with a how-loll gzc full) tlosorihotl latol'.

of tho rotatahlo turrot y is a shaft r that is rotatotl from tho main shaft 1/ by moans of luwlltl {Ivarv amt I. Hoourotl to the t I 7 clutch collar it which is sphnot shaft 1' is a largo spur goaravhool II that moshos Will: a sorios of ptntons 1' that aro o-ptally spaoott from t'tlt'lt othor arountl tho Fxtonillngg \orttcallv through U wntvrf I I at 18, which portion is splnn innor snrt'aoo of tho tan-rot 1 (soo l"i s. 3, 4, v amt t0). tho-o pinions lit-tug soottrot to tho I whool sul ltortintr rt iulllos u. 'lhc limit-r otlgo or huh portion of tho pnnons I" is provitloll with a clutch or tooth construction .r

that is tltlilllittl to ho ongagoil l) corrospomling tooth on a clutch collar 1 that is splint-ll to tho spilnllos 'I whilo tho piuions I aro loo o on th spintllcs u. 'lho collar I/ is that is so nrml t a \ort lh' arranmal pin 2 which usoi'l downward hy moans of a coiled spring It that is lot-atoll hot woon tho arm/2 antl a lag,' -t. 'lhc sptnilh-s r arc totatalily mountotl in lugs or hosscs a that'ato arranged oquidistantly trout oaoh othoi on the vertical intorior httltaccait tho tarrotl 'lho uppor ontlot' tho spnnlh-s u pas-os thrtmgh lugs or hossos ti ttlt(l is hurt-(Loot to rocoivo a wheel-supportmg olomont t sinnlar to a latho contor for supporting tho whools 8 that are to ho tnrnotl. I. r

llcsignatos a spannor not for common; tho whcol-suiportsng oloniont t trom tho sp-intllos m w It'll it is tloslrotl to turn whools ol' tlitl'ot'ont tliatnotors or wnlths, as tlosn'ot tlosignatos a collar lll lt'gl'tll WItlI IlIt' wlwol-snpporting ololnont t and provulot with pins 8 for causing tho whools t to ill! n with tho whool-supportmg olomont t. I

lt will ho notictal that tho tnastor spin "oar whool u is in constant rotation la-tng a hatt (I antl tho shaft lsoconstantl robo ttn'not are 3 is clutched or dlos w aro at rost and mac halt are in motion at. all times.

Tho truck is soourot 12 by moans of tho l shown in Fig. 3..

Rct'crring now orating tho outt rs or form tho turning opt-t 8: mountotl in hrm tots I I sown-oil to one of tho hracos l2 ts a vottna shaft to, tho nppor out of which is proa." 17 tltltl tho lowor tlltlttt'ttl'. as shown l into a momft 11 shown at utotl t'wroon a l to tla "art is provim as shown I to the. upright braces n'nokots 13, as cloal'ly to tho mechanism for 0pchascrs which por- 'ation on the wheels 14 and If that pro portion is roihu-otl In hor or intot'lnotliato sh: 20. 'lho shat't. It! has lltfllt 9:9 This collar on its lowor ottgo. with tooth it in l ig's. 2 and 3.

25 tlosignatos' an I a vot'tical I'Utl .26 which Is arm that is tltltl tllt'tl to amantml ttl hoar- 'l'o tho it tpor owl of tho xihlo o omont 30. (as a ssos' m'ot' a pn oy I, tacltotl to a sooontl ings .38 and .ZJ. Hill is attachotl tt tlt' wiro ropo.) that. pa tho othor otul hoinp at I Y. \'crtioal I'Utl' 32 moantotl in tho llt'tlt'lllfl" 5" am] 3t. tho lowor oml of which is colon-too to tho rocking loror it": In tat-an ot a huh 2H; whoroln'. whon tho rot-hint: lo or i o cratotl, tho tooth .l of tho collar it will a' .the

intermittently brohght into and out of engagement with the teeth on the upper edge of a collar 37 which issecurcd to a shaft 38 when it is desired to drive the shaft 1 intermittently. Ordinarily the. link 313 is disconnected and a continuous motion effected. The shaft 38 is provided at its lower end with a beveled gear 39, that meshes with a secoud beveled gear 4!). and is driven by means of the spur-wheel 41 that is hose on the shaft 43 which is supg orted in a bracket 42 and bearing-piece l 10 spur-wheel 41 is driven from the spur r 44 that is splmcd to the sect on =7) of t e clutch b which is held closed o3- means of the spring I). A foot-lever I) and hellcrank b are provided to throw the clutch out of action. The Section I) is driven from the shaft 1; by means of the clutch IF.

45 designates a beveled gear that meshes with the gear 17, which gear is secured to a shaft 46 that is mounted in horizontal hearings -17. ()n the opposite end of the shaft 46 is abevel gear 48 that meshes with a beveled gear 49 which is secured t '1. second shaft 50 mounted in a ixavting "The lmaringzs for the shaft iii and 50 are supported in the spider or framework as shown in Fig. i. 50 is alxweled gear 52 that meshes with a beveled gear 53 mounted on a shaft- 54 (see Figs. 1 and 5). On this shaft 54 is'a spurear 5.: that meshes with a gear 561m the shaft 57 (see Fig. 5) which is provided with a worm Q8 that meshes with a wormgear 59 mounted on the shaft (30 provided with a right and left-hand thread at its 0 posito ends, as shown: and secured to this s aft are two disk cams 61 and 62 that are adjustably held thereon by means of the lock-nuts 63. These cams rotate between ins 64 that are rovided with antifrict-ton rollers 65. an these pins are secured to the tool-carrying slides 66 in which are adjustably secured the ehasers or turning tools 67. It will therefore be seen that from this train of mechanism which is driven from the main shaft b the tools 67 are simultaneously advanced toward and withdrawn from the wheels 8 that are to be turned, as clearly illustrated in Fig. 5 and also in plan view in Fig. I.

From Fig. 1 it will be observed that the various sets of turning tools ()7 (four being shown) are operated from the shaft 54 and are connected to each other by mean-- of the universal joints 6S. and that. therefore. the plurality of sets of turning tools will all be operated in unison. 1"

It is not deemed necessary to de'scrilm in detail the construction of the other three sets .of turning tools and the. means by which they are operated since they are identical in construction with the one already described.

On the. end of the shaftin Fig. 3, whereb The nuts 63 are for the purpose of varyin;' the position-of the cams U1 and is? on the shaft (10 so that either smaller or larger wheel-a may be turned as readily understood;

ltefcrring now to the mechuniqn for rais- 7 ing. and lowering the position ot'lhe cutters so as to change-their position with reference to the wheels 8 that are. to be turned. it) designates a plate that carries.thoturning tools or Putters tiland mechanism by which 15 they al' e. ogf eiated. and it is slidalily secured lathe iiunnework of the machine. beingheld in its adjusted position bv means of the bolts 71 which pass through slots 72 in the plate 70 whic-h is secured bv these bolts to the Spider or framework it! that is bolted by its three arms to the, uprights 12 that are secured to the. base a. The plate 70 is provided with threadedopenings 73, and engaging! the same are vertically arranged g5 threaded bolts 74 tha are. provided on their upper ends with beveled gears 75 which. in turn. insh with beveled gears 76 that are mounted on the ends of horizontallyarranged shafts 77, as clearly shown in Figs. l and In order to operate these shafts, it, is only necessary (after loosenin the bolts 71) to apply a crank or handle to the squared end of the shaft 77. as shown at: 78

when the. shaft is operated the vertical y arranged shafts 74 will raise and lower the plate 40, as clearly understood.

The means for actuating the spindle-oar rying turret and the means for locking the same at every half revolution will now be described.

Referring to FiFs. 1 and 3. bearings 80 are arranged paral el to theshaft n in which is arranged a rocker-shaft ,8 and connected 106 to the left-hand end of the same is an arm 82 which is pivotally connected to the tarret-locking bolt 83 that passes through a bushing 34. the inner end of which engages an opening 85, (as shown in Fig. 4) .in a plate that. is secured to the turret, as indicated at 6. A spring 87 is located between a collar 88 and the bushing 84, which collar normally acts to hold the bolt 83 in locking engagement; with the plate 86. 89 Ill designates an arm that is secured to the rocker-shaft 81 and pivotally secured at the point 90 is a roller 91 that engages a cam 92 which is carried by the jackshaft 11-. Pivotally mnnected to the arm 8!) is the rocking lever 35 (see Fig. 2) at the point- 94. 4 This lever is mounted pivotally on the frame 95 at. the point 96. whereby when the jack shaft n is rotated the lever 35 will be raised and low red by means of the cam-roller 92 12! and will oscillate or rotate about the point 96 which. in turn. will rock the. shaft 81 and move the turret-locking bolt 83 inward and outward at the proper time; it of course being in a locked position when the turning 1W oporation on tho whoots S takos plat-o. and n an \llitm'lit-tl position during the half roro llttiott of tho turrot 1/. mountod on the shaft u (see Fig. t' ')'and is drivon hy moans of a hovolod goar lot) whi h i is ttltVttt in turn from tho shaft 101 on tho i end of whit-h is tuountod a horotod Qt'ttl' i i which tno hos with a sooond hovolou' gout". 103 that, is also loosely ltlOttlttPtt on tho shaft 'n, it hoing hold in placo by moans of tho. pit: a mastor ;1oar ntouut d on tho haft within 5 tho turrot. pinions tnouuto l on tho r-pindlos 10-1 whioh ongagos a groovo 105. 'l'ho sha. ft 101 is'providod on its opposito ond with a bovoled goal" 10f: whioh ntoshos with tho sooond gear 107 ti tat is oporatod tt!l'tt! ftt th spur-goarstttH and 10!) front tho tuain drirostaft 1:. Tho horolod gear 103 is luado iutegral with tho cant 110 and ongaging tho poriphory of this cam is a rollor 111 that t is oarriod by tho rod 112 which is normally prossod or morod toward the oatu ltt) h means of tho coilod spring 111% that is totratcdhotweon the bearings 1H and tho oollar 113 which oporatos a rod llt' that has a curved ond 117 (soo Fig, 8). which is for tho purpose of oporating the sliding koy 11 tho key hoing for tho purpose of altornatotr looking and unlocking the sprookot-whool 1 to the jack-shaft n. This k is slidahlo in a groove 119 in the shaft and is shown in Fig; 8 unlockod. and in Fig. 6 in a tookod Position. Tho rod 116 stidos hotwoon tho collars 120 and 121 that arepormanontty socured to the shaft n by iu'oans of tho sotsurows 122. Socured to tho oollar 1:21 is a loaf-Spring 123 tho froo ond of whit-h ongagos tho key 118 and is for tho purposo of moving this key from tho' position shown itt Fig. 8 to that shown in Fig. (3, whilo the curved 0nd of the rod liti sot-ves tho purpose of forcing the koy from tho position shown in Fig. (i to that shown imFiH. P.

-VVhen tho sprtwkytovhool '7 is lookod to tho shaft. llthesprt'a-kot-ohai'n 0 will transmit tho power fron tho main shaft to tho jtltfk-Stttt ft II. and through tho hovotod goat's and 131 (soo Fig. l) to tho stul t-shat't 132 whit-h. in turn. will drivo' tho horolod goal In. and rotate the turrotthrt'tugh tho goat k at tho propor titno. that is to my so as to bring a now sot of whools S on'tho tltl't't't-spittrtl'ts into position to ho tut-nod aftor tho turrot has hoon untookod h v tho bolt 83. The prm-tt'ot-goar is drirou from tho shaft 1; through tho goat-s p. F and r";

)xtondiug from tho main driro-shat't It to tho jaok-shat't n is a support in; bar or fratno 133 for supporting tho outor t-tuts of tho t' shafts in a rigid position.

'lho whoots S to ho tut-nod aro proridod with :t oontl'al opouing and two diauu-trioally plaooti oponings H" to roooivo tho pins S on tho olotuonts T.

lho uppor ond of tho turrot 1 i olosod by a plato as shown in Fig. -L for tho purpose of pro\'ontin t tho turuingls from fallin; into tho niaohirand aliso sorving as a plat form for tho whoots S to rost on before and a ftor tho tttt'ttitri oporation.

\that l laint. is:

1. ln a turningtnarhino. tho oombination with a rotatahlo turrot. of suhstantially pat-allot fillillttttr joltl'tlalod thoroou and to atott thou-in. a shaft rotatahto with relati n to tho turrot and looatod axially thoroin and z-nhstantiatly pal'allol to tho .-pindlos,

-oont'tootin; and di t-omiooting tho pinions 4 and spitullos on tho rotation of tho turret. and moan f r ott'ooting, tho int'oratittont r tation of thosrtid tlit'l't't.

:2. lit a tlt|tttt!-'.' tnaohino. tho ootuhiuation with a rotatahto tnrrot. of pindtos jozzrualod tlltt'tttt:..ztltl Iooatod ti .\-r in. a haft rotatzthto with' rotation to tho turrot and looatt-d axially thoroin. a !tt2t ttt 1 ttt't:| rltttttt1 on tho shaft within tho tat-rot, pinions tnouutod on tho spindtos within tho tut-rot and moshing w h tho |na tor u'oar. nto hanistu for autotmttioaltv oonnooting and disoonnootitr; t'ho pinions and spindles on tho rotation of tho turr t. main drivo shaft, goats oonnootod to tho mastor whool shaft and driring shaft for (Ulltltftlt ttStY opor- :ttill; tho lattol. a goat tixod to tho turrot oouoontrio to tho L'oar of tho tuastor wnool shaft. and ]tt)\\t'l"tl'tltbtltttttllg tnoohanisnt intorposod hotwoon the drive shaft and turrot goat for otl'ooting an automatio and intortuittont rotation of said turrot.

3. lit a turning tnaohino. tho oonthination with supporting tnoans. of a rotatahlo tut-rot journalod thoroon on an up ight aai horolod goat" tixod to tho towor ou-.t or tut-rot, a tuain driro shaft (\lt'tttiillfj' transrorsoly through tho tt1r])t1|'tltt moans. .izt' 'ltanisnt oounootiug tho tnain drito shaft and tho horotod goar for ottt-t-tiug an :Itllntnzttit' and intortnittout rotation of tho tnrrot.a rottiral shaft jouruatod axially in tho tut-rot. goaringg oonuootin; tho nnzin driro hah and tho rortioat shaft. a nta lor wh ot on said shaft. a plurality of \\ork-oarryiug' dork-o rotatahly ntountod on tho tnrrot. piniou iottt' nalod on said do\i os and in tuo h th th tnast r whorl. otutolso for oonnrotiug and diso unooting tho pinions and tho do\ioo.-. and moans for otft-t'titt j tho :ltl'mlltzttit' oporation of tho olutohos on tho rotation of tho tltlt'ot.

4. in a turning ntaohino. tho omnhination with a rotatahto turrot. of tut-ans. for ott'ot-ting an iutorntittont r tatiotrof tho atuo. sai-t uu-ans iuotudin 1 a driron shaft :oarotl to tho turrot. a dririag whool journalod on tho shaft. a ko stidahto tonyittulinaltr of ttto tto transversely of the shaft and engaging the key to move the same, a cam rotatable on the shaft, means forcontinuously rotating the cam. and a wedge actuating device engzwing the cam and operated thereby.

0. In a. turning machine. the combination with a base. of a turret rotatable thereon, means for intermittently rotating the turret. a plurality of wheel supports carried by the turret. a plurality of cutters movable into and out. of cooperation with the wheel supports, and means for moving the cutters. including an actuating device for each cutter. a shaft conn'irising angularly disposed sectiom. each geared to an actuating device. and universal joints connecting the sections.

6. ln'a turning machine. the combination with a baeeaof a turret rotatable thereon. means for intermittently rotating the turret, a plurality of spindlesjournaled on the turrct. a plurality of sets of cutters movable into and out of room-ration with the spindles. rotatable ams for moving the cutters of each set. shafts carrying said cams. \voi m wheels on the shafts. a driving shaft comprising angularly disposed sections. each having a worm meshing with omof said worm wheels. and universal joints connecting the sections.

T. In a turning machine. the combination with a has... of a rotatable turret thereon. spindles journal d on the turret. a vertically mo able support. adjustable cutters carricd by the support. mcam for adjusting the cuttcrs also mounted on the support. and means for vertically moving the support and holding it. in dillcrent positions.

8. In a turning machine. the combination will: a rotatable turret, of work supporting means mounted thereon. a movable cutter cooperating with thc work supporting means. a -shaft disposed longitudinally f said cutter. a cam mounted on the shaft and operating on the cutter to move it. and means for adjusting the cam longitudinally along the shaft.

5). in a turning machine. the combination with a rotatable turret and work-supporting means mounted thereon. of a pair of oppositely movable cutters cot'iperating with the work-sup :ortiug means. a threaded shaft disposed l mgitudinally of the utters. cams rotatable with thc shaft and engaging the i I l i cutters to move them in opposite directions, said cams being slidable longitudinally along the shaft. nuts tlu'eaded'on the shaft for holding the (aims in different adjusted positions. and means for rotating the shaft to move the, cutters.

10. In a turning machine, the combination with an intermittently rotated turret, of a driven shaft geared thereto. a driving member journaled on the shaft. means for connecting and disconnecting the driving member and driven shaft. including a rotatable device. a lock for holding the turret against movenu'nt. actuating means for the lock including a rotatable device. and a common driving member geared to both rotatable devices for operating the same.

11. In a turning machine. the combination with an intermittently rotatcd turret. of a driver. sha ft g arcd thereto, a rork shaft lo-- catcd alongside the driven hat't. a locking device for the turret operated by the rock shaft. a driving wheel ournalcd on the 'shal't. a key for connecting and disconnecting the wheel and shaft. :1 pair of cams journah-d on the shat". an arm carried by the rock shaft. and engaging one of the cams. opt-rating means for the key engaging the other cam. and a driving device geared to both cams.

I). The combination with a turret member. a jaclcshaft. connecting means for operating the turret from said shaft. a bevel gear loosely mounted on the shaft and haw inga cam tit-eccentric member integral therewith. a sprocket drive wheel loos on the shaft. and means operable from the cam for connecting and disconnecting the sprocket wheel to the jack-shaft. whereby the turretwill be intermittently operated.

13. The com ination with a spimlle-carrying turret. of a jack-shaft for operating the same. a pair of bcvcl gears lrmscly mounted thereon. each gear having an eccentric intcgral therewith. means operated bv one eccentric to lock and unlock the turret. and means operated by thc othcr eccentric to connect aml disconnect the source of power for operating the turret.

FRANClS HUDSON.

Witnesses Wuaann llt'osox. (IIHHLHS .l'. Pass. 

